I think jackycomelately has done a wonderful job of crossing Supernatural with American Idol. It has the kind of features that are important in both fandoms. More importantly, Inside Out, Upside Down, Backward is a great read. It's got incredible dialogue and a fast-paced and exciting plot. It also has an awesome mixture of humour and drama. Oh, and there are beautiful illustrations by bitterlotus. Really, it's impossible to go wrong with this fic. But don't take my word for it. READ THE STORY. :-D